The Yuchai YC8CAX Marine Main Engine is designed for 8,000–12,000-ton transport vessels and 50–70-meter fishing boats. Based on proven marine engine technology, Yuchai developed the YC8CAX to meet demanding operating conditions that require stable power, high efficiency, and long service life. As a compact and reliable marine diesel solution, the Yuchai YC8CAX Marine Main Engine provides consistent performance across a wide range of marine applications.

Powerful Performance

The YC8CAX marine engine adopts efficient turbocharging and intercooling technology to achieve higher power density and greater torque output. As a result, it offers sufficient power reserve for different operating conditions. Moreover, the engine maintains strong acceleration and stable output, which helps improve overall operating efficiency for transport vessels and fishing boats.

Fuel Efficiency and Cost Savings

The YC8CAX marine diesel engine features four-valve technology to significantly increase intake and exhaust airflow. In addition, the centrally positioned injector improves fuel atomization and ensures more complete combustion. Therefore, the engine achieves lower smoke levels, reduced fuel consumption, and a flatter fuel consumption curve. This design expands the economic operating range and helps operators reduce long-term operating costs.

Easy Maintenance

The Yuchai YC8CAX Marine Main Engine adopts a modular design with wet cylinder liners and a one-cylinder-one-head structure. Furthermore, the engine block includes side access windows, which makes installation, inspection, and routine maintenance more convenient. As a result, maintenance time and service effort are effectively reduced.

Compact Structure

The engine block uses a large number of arc-shaped structural designs to improve overall strength while reducing weight. At the same time, the compact cylinder spacing allows the YC8CAX marine engine to achieve smaller overall dimensions. This compact structure makes the Yuchai YC8CAX Marine Main Engine well suited for vessels with limited engine room space.

Safe, Reliable, and Comfortable Operation

The YC8CAX uses a high-strength alloy cast iron engine block combined with an integral forged steel crankshaft. In addition, a special dual safety anti-impact pad structure ensures safe and stable engine operation while extending service life. Moreover, the water-cooled exhaust system effectively reduces engine room temperature, providing a safer and more comfortable onboard environment.